Petzl B01 Tibloc Ascender

A totally ingenious and ultra-light rope clamp/grab, which should find a place in all
areas of rock climbing, caving and mountaineering. The Tibloc is a versatile
replacement for Prusik knots used for rope climbing maneuvers or for setting up
pulley systems. This is the essential problem-solving tool, multi-purpose, effective
and reliable. (It even opens bottles of beer). Weight 39 g. CE - UIAA